package com.chixing.day10_hashcode_exception.word;

public class Test {
    public static void main(String[] args) {



        MapSum mapSum = new MapSum();
        mapSum.insert("apple",3);
        mapSum.insert("app",2);
        mapSum.insert("apple",5);
        System.out.println(mapSum.sum("ap"));

    }
}
